Zobrazeno 1 - 10
of 258
pro vyhledávání: '"Panagopoulos, C. P."'
Autor:
Raju, M., Petrović, A. P., Yagil, A., Denisov, K. S., Duong, N. K., Göbel, B., Şaşıoğlu, E., Auslaender, O. M., Mertig, I., Rozhansky, I. V., Panagopoulos, C.
Publikováno v:
Nat Commun 12, 2758 (2021)
The topological Hall effect is used extensively to study chiral spin textures in various materials. However, the factors controlling its magnitude in technologically-relevant thin films remain uncertain. Using variable temperature magnetotransport an
Externí odkaz:
http://arxiv.org/abs/2105.08245
Autor:
Petrović, A. P., Raju, M., Tee, X. Y., Louat, A., Maggio-Aprile, I., Menezes, R. M., Wyszyński, M. J., Duong, N. K., Reznikov, M., Renner, Ch., Milošević, M. V., Panagopoulos, C.
Publikováno v:
Phys. Rev. Lett. 126, 117205 (2021)
We report experimental coupling of chiral magnetism and superconductivity in [IrFeCoPt]/Nb heterostructures. The stray field of skyrmions with radius ~50nm is sufficient to nucleate antivortices in a 25nm Nb film, with unique signatures in the magnet
Externí odkaz:
http://arxiv.org/abs/2103.09808
Publikováno v:
Review of Scientific Instruments 92, 015102 (2021)
We present a laboratory electromagnet capable of generating magnetic fields up to $\pm$0.48T, specifically designed as a perpendicular flux source for thin film samples in an ambient environment. The magnet features a 250mm diameter clear access bore
Externí odkaz:
http://arxiv.org/abs/2101.02192
We report a homebuilt ultra-high-vacuum (UHV) rotating sample manipulator with cryogenic cooling. The sample holder is thermally anchored to a built-in cryogenic cold head through flexible copper beryllium strips, permitting continuous sample rotatio
Externí odkaz:
http://arxiv.org/abs/2011.02647
Autor:
Liu, W., Wu, Y. F., Li, X. J., Bud'ko, S. L., Canfield, P. C., Panagopoulos, C., Li, P. G., Mu, G., Hu, T., Almasan, C. C., Xiao, H.
Publikováno v:
Phys. Rev. B 97, 144515 (2018)
Superconductivity in iron pnictides is unconventional and pairing may be mediated by magnetic fluctuations in the Fe-sublattice. Pressure is a clean method to explore superconductivity in iron based superconductors by tuning the ground state continuo
Externí odkaz:
http://arxiv.org/abs/1806.01432
Autor:
Satywali, Bhartendu, Ma, Fusheng, He, Shikun, Raju, M., Kravchuk, Volodymyr P., Garst, Markus, Soumyanarayanan, Anjan, Panagopoulos, C.
Magnetic skyrmions are nanoscale spin structures recently discovered at room temperature (RT) in multilayer films. Employing their novel topological properties towards exciting technological prospects requires a mechanistic understanding of the excit
Externí odkaz:
http://arxiv.org/abs/1802.03979
Autor:
Mitra, S., Petrović, A. P., Salloum, D., Gougeon, P., Potel, M., Zhu, Jian-Xin, Panagopoulos, C., Chia, Elbert E. M.
Publikováno v:
Phys. Rev. B 98, 054507 (2018)
Long-range order in quasi-one-dimensional (q1D) arrays of superconducting nanowires is established via a dimensional crossover from a fluctuating 1D regime to a phase-coherent 3D ground state. If a homogeneous crystalline superconductor exhibits suff
Externí odkaz:
http://arxiv.org/abs/1710.00292
Autor:
Ho, Pin, Tan, Anthony K. C., Goolaup, S., Oyarce, A. L. Gonzalez, Raju, M., Huang, L. S., Soumyanarayanan, Anjan, Panagopoulos, C.
Publikováno v:
Phys. Rev. Applied 11, 024064 (2019)
Magnetic skyrmions are chiral spin structures that have recently been observed at room temperature (RT) in multilayer thin films. Their topological stability should enable high scalability in confined geometries - a sought-after attribute for device
Externí odkaz:
http://arxiv.org/abs/1709.04878
Autor:
Raju, M., Yagil, A., Soumyanarayanan, Anjan, Tan, Anthony K. C., Almoalem, A., Auslaender, O. M., Panagopoulos, C.
Publikováno v:
Nature Communicationsvolume 10, Article number: 696 (2019)
Skyrmions are topologically protected, two-dimensional, localized hedgehogs and whorls of spin. Originally invented as a concept in field theory for nuclear interactions, skyrmions are central to a wide range of phenomena in condensed matter. Their r
Externí odkaz:
http://arxiv.org/abs/1708.04084
Autor:
Leng, X., Pereiro, J., Strle, J., Dubuis, G., Bollinger, A. T., Gozar, A., Wu, J., Litombe, N., Panagopoulos, C., Pavuna, D., Božović, I.
Publikováno v:
Quantum Materials 2, 35 (2017)
Tungsten oxide and its associated bronzes (compounds of tungsten oxide and an alkali metal) are well known for their interesting optical and electrical characteristics. We have modified the transport properties of thin WO$_3$ films by electrolyte gat
Externí odkaz:
http://arxiv.org/abs/1707.05748